21. Изчертаване полигон

Bitmap bmp = new Bitmap(pictureBox1.Width, pictureBox1.Height); 
            Graphics graph = Graphics.FromImage(bmp); 
            Pen pen = new Pen(Color.Red, 2); 
            Point p1 = new Point(10, 80); 
            Point p2 = new Point(10, 50); 
            Point p3 = new Point(60, 20); 
            Point p4 = new Point(110,50); 
            Point p5 = new Point(110,80); 
            Point p6 = new Point(10, 50); 
            Point p7 = new Point(110, 50); 
            Point p8 = new Point(10, 80); 
            Point p9 = new Point(110, 80); 

            Point[] curvePoints = { p1, p2, p3, p4, p5, p6, p7, p8, p9};